Answer:
The correct answer is Option C: It is a short work of nonfiction that explains something in an amusing way.
Explanation:
The author uses gravity to talk about the negative effect of weightlessness and he uses gravity to explain this topic that otherwise could be tedious in an interesting and different angle.
Answer:
The most common definitions are listed first
Explanation:
Dictionaries are intended to be convenient, therefore they would put the most common definition first to avoid the reader to search through all the other ones.